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International Comfort Products PGAD24D1K4 Air Pressure Switch
The main function of the pressure switch is to sense whether the blower fan is circulating the air as it should. This pressure switch is part of a small, but important collection of hardware devices made to keep you safe. Some pressure switches are equipped with a manual reset feature, which means it will have to be manually reset in order for the HVAC system to continue running.
What to Look Out for when the System Pressure Switch is About to Fail
- Incorrect voltage being read from the pressure switch.
- Your furnace won't operate at all.
- The correct temperature is hardly ever reached.
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